Question

Read the paragraph and answer the following questions.

The bulb becomes hot when you put on for sometime. It has the filament

made up of tungsten which makes the bulb heat up due to current flowing through it. An

electric iron, electric cooker and electric heater contain some filament. So filament is the coil

which converts electrical energy into heat and light energy.i) What is filament ?

ii) Name the material used as a filament in electric bulbs?

iii) Name some electrical appliances where electrical energy is converted to heat energy?

iv) Which filament is used in the heating device electric heater ?​

Answer 1

filament is the coil

which converts electrical energy into heat and light energy

tungsten

heater, geyser, bulb

filament of tungsten